Features a notched hammer and precision-machined parts.
Combine the best of old-school ARs with the ergonomics of a modern parts kit with the Sporter LPK from Gun Nuts. Features an original notched hammer, for compatibility with unshrounded bolt carriers and old-school uppers from Colt, Bushmaster, and military surplus rifles.
Mil-spec fitment guarantees compatibility with virtually all AR-15 lower receivers, including 80% lowers and retailer stripped lowers.
Sporter Lower Parts Kit: What’s Included
This AR-15 Lower Parts Kit includes all components required for assembling your AR-15 stripped lower receiver, minus a buffer tube kit (sold here).
- Bolt Catch
- Bolt Catch Plunger
- Bolt Catch Roll Pin
- Bolt Catch Spring
- Buffer Retainer
- Buffer Retainer Spring
- Disconnector
- Disconnect Spring
- Notched Hammer
- Hammer Pin
- Hammer Spring
- Magazine Catch
- Magazine Catch Button
- Magazine Catch Spring
- Pistol Grip (A2 style)
- Pistol Grip Lock Washer
- Pistol Grip Screw
- Pivot Pin
- Pivot Pin Detent
- Pivot Pin Detent Spring
- Ambitdextrous Safety
- Safety Detent
- Safety Detent Spring
- Takedown Pin
- Takedown Pin Detent
- Takedown Pin
- Detent Spring
- Trigger
- Trigger Guard
- Trigger Guard Roll Pin
- Trigger Pin
- Trigger Spring
LPK Install Instructions
First time assembling, or need assistance with certain steps? Check out our in-depth instructional and picture guide. It shows the full LPK assembly with tips and tricks, including tools required and the buffer tube and castle nut install.
Buffer Assembly Sold Separately
Finishing Your Custom AR-15 Build
This lower parts kit is compatible with retail-bought stripped lower receivers and fabricated
AR-15 80% lowers. Learn what other parts you need to finish your AR-15 with our
Beginner’s Build Guide.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping Restrictions
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or “assault weapons” (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
Features a notched hammer and precision-machined parts.
Combine the best of old-school ARs with the ergonomics of a modern parts kit with the Sporter LPK from Gun Nuts. Features an original notched hammer, for compatibility with unshrounded bolt carriers and old-school uppers from Colt, Bushmaster, and military surplus rifles.
Mil-spec fitment guarantees compatibility with virtually all AR-15 lower receivers, including 80% lowers and retailer stripped lowers.
Sporter Lower Parts Kit: What’s Included
This AR-15 Lower Parts Kit includes all components required for assembling your AR-15 stripped lower receiver, minus a buffer tube kit (sold here).
- Bolt Catch
- Bolt Catch Plunger
- Bolt Catch Roll Pin
- Bolt Catch Spring
- Buffer Retainer
- Buffer Retainer Spring
- Disconnector
- Disconnect Spring
- Notched Hammer
- Hammer Pin
- Hammer Spring
- Magazine Catch
- Magazine Catch Button
- Magazine Catch Spring
- Pistol Grip (A2 style)
- Pistol Grip Lock Washer
- Pistol Grip Screw
- Pivot Pin
- Pivot Pin Detent
- Pivot Pin Detent Spring
- Ambitdextrous Safety
- Safety Detent
- Safety Detent Spring
- Takedown Pin
- Takedown Pin Detent
- Takedown Pin
- Detent Spring
- Trigger
- Trigger Guard
- Trigger Guard Roll Pin
- Trigger Pin
- Trigger Spring
LPK Install Instructions
First time assembling, or need assistance with certain steps? Check out our in-depth instructional and picture guide. It shows the full LPK assembly with tips and tricks, including tools required and the buffer tube and castle nut install.
Buffer Assembly Sold Separately
Finishing Your Custom AR-15 Build
This lower parts kit is compatible with retail-bought stripped lower receivers and fabricated
AR-15 80% lowers. Learn what other parts you need to finish your AR-15 with our
Beginner’s Build Guide.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping Restrictions
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or “assault weapons” (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Platform:
- AR15
- Brand:
- Schmid Inside
